Details of investigations into government leaks of classified materials also hint at the personal and professional cost for those caught up.     WASHINGTON—Weeks after accepting a workers’ compensation settlement for a personal injury he purportedly sustained on the job, Vice President Joe Biden is under investigation for allegedly filing a fraudulent claim, sources confirmed Friday. Microsoft says their new Xbox features a host of simple voice commands that will easily control and instruct gamers. Apple has announced that customers have downloaded over 40 billion apps — nearly 20 billion in 2012 alone. The App Store has over 500 million active accounts and had a record-breaking December with over two billion downloads during the month. Eddy Cue, Apple’s senior vice president of Internet Software and Services, says, “It has been an incredible year for the iOS developer community.” Developers have created over 775,000 apps for iPhone, iPad, and iPod touch and have been paid over $7 billion by Apple. SEATTLE—Citing “subtle notes of ethambutol and clindamycin,” longtime McDonald’s customer Chris Hingle reported Thursday that he could discern from the taste of his McChicken sandwich a definite change in the antibiotics the fast f... The cover of the January 28 issue of The New Yorker features work by Jorge Colombo, an artist who creates his pieces exclusively on the iPad. He started out in 2009 working on the iPhone, but now enjoys the larger format of the iPad. “I became more proficient on the tablet and started using more lines and more detail,” he says. His illustration for The New Yorker, titled “Newsstand,” is the first piece Colombo created on the iPad. A deadly accident highlighted concerns about the use of compressed natural gas kits in vehicles in Pakistan.     Apple announced financial results for its fiscal 2013 second quarter ended March 30, 2013, posting revenue of $43.6 billion and quarterly net profit of $9.5 billion, or $10.09 per diluted share. During the quarter, Apple sold 37.4 million iPhones, compared to 35.1 million in the year-ago quarter. And it sold 19.5 million iPads during the quarter, compared to 11.8 million in 2012. “We are pleased to report record March quarter revenue thanks to continued strong performance of iPhone and iPad,” said Tim Cook, Apple’s CEO. “Our teams are hard at work on some amazing new hardware, software, and services, and we are very excited about the products in our pipeline.” With an eye toward helping students navigate the digital world, Burlington High School outside Boston adopted the iPad one-to-one program, which provides every student with an iPad. In its first year, the program has already made a big difference — students say they’re more excited and organized than in previous years, and teachers say they see a deeper level of learning. “Having a say in your education is really powerful,” says one student. “With iPad, you feel like you’re more in charge.” A new video profiles Essa Academy, a once struggling school in one of the most disadvantaged areas of England. New principal Showkat Badat has reinvented the school as a hub of technology-assisted learning, and helped incorporate an ecosystem of Apple products, including iPad, Mac, and iTunes U, into the classrooms. The students’ excitement about the technology and direct access to information is reflected in dramatically improved test scores. Since adopting the technology, Essa went from a 28 percent pass rate to 100 percent. “I don’t see technology as an add-on, a nice option to have,” says Badat. “It’s what enables learning and creates an environment that sparks creativity.” By George Lucas In this video report from CNN, documentary film director Malik Bendjelloul talks about how he used a $1.99 iPhone app to finish shooting his Oscar-nominated film, “Searching for Sugar Man.” The film tracks the rise to fame of the Detroit musician Rodriguez, who never made it big in the United States but became a legend in South Africa. Bendjelloul started shooting the movie on film, but with just a few shots remaining, he found his budget depleted. That’s when he turned to an iPhone app called 8mm by Nexvio, which gave his video a retro feel. “It looks like real film,” says Bendjelloul. “You can’t tell the difference.” “Searching for Sugar Man” has garnered praise at the Tribeca film festival, SXSW Film, and the Los Angeles Film Festival. How One Man Defied The Critics Who Said Large-Breasted Models Couldn't Sell Funny T-Shirts Apple has announced that customers have now downloaded over 50 billion apps from the App Store. The 50 billionth app — Say the Same Thing by Space Inch, LLC — was downloaded by Brandon Ashmore from Mentor, Ohio, who received a $10,000 App Store Gift Card to commemorate the milestone. “The App Store completely transformed how people use their mobile devices and created a thriving app ecosystem that has paid out over nine billion dollars to developers,” said Eddy Cue, Apple’s senior vice president of Internet Software and Services. “We’re absolutely floored to cross this milestone in less than five years.” A visit to Africa by Secretary of State John Kerry comes as amid several developments on the continent, but Syria was still on his agenda.     A comedic webisode about two roommates became a viral sensation this week after reaching the unprecedented 100 view milestone. The best tool to improve and keep track of your health may be in your pocket, says Dr. Eric Topol, a pioneering figure in “wireless medicine” — the practice of using apps and devices in health care. An article from NBC News describes how new apps for iPhone and other devices can measure vital signs and even detect whether someone is having a heart attack. “These days, I’m prescribing a lot more apps than I am medications,” says Dr. Topol. “The smartphone will be the hub of the future of medicine.” MIAMI—During Game 1 of the Eastern Conference Finals, players on the Miami Heat confirmed Wednesday that they were wholly unprepared for the aggressive brand of basketball played by the chainsaw-wielding members of the Indiana Pacers squad. Across the Hamptons, some residents fear that a new wave of partyers driven north by Hurricane Sandy could exacerbate a shift in the societal order.     Environmentalists are worried that a wind-energy project near the Mojave Desert could affect the fragile condor population.     Laptop Magazine has awarded Apple the top prize in its Best Brands feature for the fourth year in a row, placing first in five of the eight categories it measures. In addition, the 15-inch MacBook Pro with Retina display took honors as the magazine’s top notebook of 2012, with editors praising the screen, performance, battery life, and design. Software and tech support were also highlighted. “Apple continues to epitomize the best of the best,” say the magazine’s editors.